Nippon Steel Corporation

Motonori Tamura

Toshiya Kinoshita

Hiroaki Sakamoto

Shogo Konya

Tooru Inaguma

Koichi Shinada

Kyoichi Nagano

Hiroshi Naganuma

Shigenobu Soneda

The present invention provides an Fe&#x2014;Cr&#x2014;Al based stainless steel sheet and double layered sheet having a high Al content of greater than 6.5%, honeycomb bodies employing the stainless steel sheet or double layered sheet, and a process for fabrication of the steel sheet or double layered sheet. The sheet is a high Al-containing Fe&#x2014;Cr&#x2014;Al based stainless steel sheet or high Al-containing double layered sheet characterized by comprising, by weight, Cr: 10-30% and Al: &#x3e;6.5%-15%. Preferably, the steel sheet further comprises either or both Ti: 0.02-0.1% and Nb: 0.02-0.3%, and also comprises La: 0.01-0.1%, Ce: 0.01-0.1% and P: 0.01-0.05%. It also preferably comprises Cu: 0.01-1.0% by weight, and preferably further comprises Mg: 0.001-0.1% by weight. There is also provided a honeycomb body fabricated using the Fe&#x2014;Cr&#x2014;Al based stainless steel sheet.

High Al stainless steel sheet and honeycomb bodies employing them

A pad conditioner for semiconductor substrates for performing conditioning by slide contact with the abrasive surface of the polishing pad comprises a support member having a surface opposed to the polishing pad, a joining alloy layer covering the above surface of the support member, and a group of hard abrasive grains which are spread out and embedded in the joining alloy layer and supported by the joining alloy layer. At the contact interface between each of the hard abrasive grains and the above joining alloy, the surfaces of the hard abrasive grains are covered with either a layer of metallic carbides or a layer of metallic nitrides. Ag-base and Ag&mdash;Cu-base alloys, etc., can be used as the joining alloys.

Pad conditioner for semiconductor substrates

Method for producing pad conditioner for semiconductor substrates

A welding flux which forms a weld metal simultaneously satisfying low-oxygen, low-nitrogen, and low-hydrogen contents, gives weld beads in good form, and joins given metal pieces without entailing weld defects is obtained by formulating the flux in a composition such that a four-component system used therein is formed of CaO, MgO, Al.sub.2 O.sub.3, and SiO.sub.2 in the following proportions based on the total amount of the system taken as unity (100%),

Low-hydrogen, low-nitrogen, low-oxygen welding flux

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Futtsu, Japan

Motonori Tamura